Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne The Biggest Star
Name: anette l gubala
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1993 - 1999

What's the biggest star?

This is actually a hard question. It is difficult to determine the size of a star. If you mean the star with the biggest radius then it culd be a star like Beutelguese in Orion which is a red giant that is nearing the end of its life. If you meant the amount of mass that the star has , it could be a black hole that is very massive, but not big in size. To determine the radious of a star we need to measure the brightness, the distance to the star, and th color. It is hard to know all of these. The color of the star is a measure of its part int the life cycle of stars.

Samuel P Bowen

Click here to return to the Astronomy Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory